Mineral Nutrition Question 22
22. Which one of the following is a micronutrient for plants?
[1996]
(a) Calcium
(b) Magnesium
(c) Manganese
(d) Nitrogen
Show Answer
Answer : c
Hints & Solution
(c) Nutrients which are required in large amounts in functioning of plant are known as macronutrients eg. $Ca, Mg, N$. Nutrients required in trace amounts are known as micronutrients. Manganese is a micronutrient for plants essential for synthesis of chlorophyll. It is also required for activation of enzymes of respiration and nitrogen metabolism.
